142.4.181.32/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
142.4.181.32
Broadcast Address
142.4.181.63
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
142.4.181.33
Last Usable IP
142.4.181.62
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (142.4.181.32). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 142.4.181.63 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 30 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask255.255.255.224 is the dotted-decimal equivalent of /27. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation 142.4.181.32/27
Network Address 142.4.181.32
Broadcast Address 142.4.181.63
Subnet Mask 255.255.255.224
Wildcard Mask 0.0.0.31
Prefix Length /27
IP Address Class Class B
Total IP Addresses 32
Usable Host Addresses 30
First Usable IP 142.4.181.33
Last Usable IP 142.4.181.62
Network (Hex) 0x8E04B520
Broadcast (Hex) 0x8E04B53F
Address Type Public / Globally Routable

Binary Representation

Network Address
10001110.00000100.10110101 10001110.00000100.10110101.00100000
Subnet Mask
11111111.11111111.11111111.11100000

The first 27 bits (1s in the mask) identify the network. The remaining 5 bits identify hosts within the network.

Split into Equal Subnets

Split 142.4.181.32/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 142.4.181.32/28 142.4.181.32 142.4.181.33 142.4.181.46 142.4.181.47 14
2 142.4.181.48/28 142.4.181.48 142.4.181.49 142.4.181.62 142.4.181.63 14

IP Address Sample

Showing first 16 of 32 total IPs.

142.4.181.32 net
142.4.181.33
142.4.181.34
142.4.181.35
142.4.181.36
142.4.181.37
142.4.181.38
142.4.181.39
142.4.181.40
142.4.181.41
142.4.181.42
142.4.181.43
142.4.181.44
142.4.181.45
142.4.181.46
142.4.181.47
… 16 more IPs …

/27 Subnet Reference

Total IPs 32
Usable Hosts 30
Subnet Mask 255.255.255.224
Wildcard 0.0.0.31

Calculate Another